Hey there! I have read several troubleshooting threads, reinistalled SexLab multiple times, ran FNIS and LOOT a dozen of times and reset SL in-game a couple of times. All to no result. After a scene starts, it's actors will undress, do nothing and redress. I activated debug logging and SexLab told me it had some problem with sslActorAlias, where an entry would leave some Aliases behind which are not supposed to be there or some shit. It also said something about not being able to create a thread because the makeup didn't go through. I got the log, take a look:   Spoiler [11/11/2015 - 07:18:09AM] SEXLAB - GetByTags(ActorCount=2, Tags=Cowgirl,aggressive, TagsSuppressed=, RequireAll=TRUE) [11/11/2015 - 07:18:09AM] SEXLAB - No Animations Found [11/11/2015 - 07:18:09AM] Defeat: SexLabScene - No animations were found for 'Cowgirl,aggressive' the script will set default 'Cowgirl' tagged animations [11/11/2015 - 07:18:09AM] SEXLAB - GetByTags(ActorCount=2, Tags=Cowgirl, TagsSuppressed=, RequireAll=TRUE) [11/11/2015 - 07:18:09AM] SEXLAB - Found Animations(14) [11/11/2015 - 07:18:09AM] ERROR: Array index -1 is out of range (0-4) stack:     [SexLabThread00 (0A061EEF)].sslthreadcontroller.ActorAlias() - "sslThreadModel.psc" Line 945     [SexLabThread00 (0A061EEF)].sslthreadcontroller.DisableUndressAnimation() - "sslThreadModel.psc" Line 505     [DefeatRessourcesQst (6704B8D1)].defeatconfig.SexLabScene() - "defeatconfig.psc" Line 2588     [alias PlayerRef on quest DefeatPlayerQST (67000D62)].defeatplayer.PreDownRape() - "defeatplayer.psc" Line 1118     [DefeatRessourcesQst (6704B8D1)].defeatconfig.OnUpdate() - "defeatconfig.psc" Line ? [11/11/2015 - 07:18:09AM] ERROR: Cannot call DoUndress() on a None object, aborting function call stack:     [SexLabThread00 (0A061EEF)].sslthreadcontroller.DisableUndressAnimation() - "sslThreadModel.psc" Line 505     [DefeatRessourcesQst (6704B8D1)].defeatconfig.SexLabScene() - "defeatconfig.psc" Line 2588     [alias PlayerRef on quest DefeatPlayerQST (67000D62)].defeatplayer.PreDownRape() - "defeatplayer.psc" Line 1118     [DefeatRessourcesQst (6704B8D1)].defeatconfig.OnUpdate() - "defeatconfig.psc" Line ? [11/11/2015 - 07:18:09AM] ERROR: Array index -1 is out of range (0-4) stack:     [SexLabThread00 (0A061EEF)].sslthreadcontroller.ActorAlias() - "sslThreadModel.psc" Line 945     [SexLabThread00 (0A061EEF)].sslthreadcontroller.DisableRagdollEnd() - "sslThreadModel.psc" Line 513     [DefeatRessourcesQst (6704B8D1)].defeatconfig.SexLabScene() - "defeatconfig.psc" Line 2589     [alias PlayerRef on quest DefeatPlayerQST (67000D62)].defeatplayer.PreDownRape() - "defeatplayer.psc" Line 1118     [DefeatRessourcesQst (6704B8D1)].defeatconfig.OnUpdate() - "defeatconfig.psc" Line ? [11/11/2015 - 07:18:09AM] ERROR: Cannot call DoRagdoll() on a None object, aborting function call stack:     [SexLabThread00 (0A061EEF)].sslthreadcontroller.DisableRagdollEnd() - "sslThreadModel.psc" Line 513     [DefeatRessourcesQst (6704B8D1)].defeatconfig.SexLabScene() - "defeatconfig.psc" Line 2589     [alias PlayerRef on quest DefeatPlayerQST (67000D62)].defeatplayer.PreDownRape() - "defeatplayer.psc" Line 1118     [DefeatRessourcesQst (6704B8D1)].defeatconfig.OnUpdate() - "defeatconfig.psc" Line ? [11/11/2015 - 07:18:09AM] SEXLAB - Thread[0] StartThread() ERROR - Cannot start thread while not in a Making state [11/11/2015 - 07:18:09AM] Defeat: Error: Player victim, Animation did not start, something went wrong with the scene, check your SexLab settings [11/11/2015 - 07:18:10AM] ERROR: Cannot call doProxyRace() on a None object, aborting function call EDIT: I installed SexAddicts to test if it is a general animation problem or just SexLab. It worked, so it's just SexLab. If you need more, just say so. I'll give you a fresh log.